package Leetcode第二期;

/**
 * @author : K k
 * @date : 12:25 2020/9/28
 */
class Nnode {
    public int val;
    public Nnode left;
    public Nnode right;
    public Nnode next;

    public Nnode() {}

    public Nnode(int _val) {
        val = _val;
    }

    public Nnode(int _val, Nnode _left, Nnode _right, Nnode _next) {
        val = _val;
        left = _left;
        right = _right;
        next = _next;
    }
};